You've got a young ball python with multiple problems from your other post (external parasites, scale rot and probable RI). The last thing you need to be doing right now is stressing her out more by putting her in an enclosure that is too large for an adult ball python, much less a four month old.

Please take advice that has been offered to you in this thread and other threads and get this girl taken care of before you start making such drastic changes in her life.